With the right equipment, almost any type of metal can be welded, especially when it’s being joined with a part made of the same material. But what if your project calls for welding two different metals, like copper to steel? While this task is more complex, a skilled welder can often join dissimilar materials, depending on the metal being used.

Welding Dissimilar Metals

Why Is it So Difficult?

Welding works by melting the edges of both parts, along with a wire joining medium. The molten metal pools together and cools, which should form a joint stronger than either of its components. However, two different metals might have wildly varying melting points, making it extremely difficult for the welder to develop a pool of molten material.

When they do melt together, some metals will create alloys that may be brittle, weak, or have other unwanted properties that compromise the joint. A part with a lower melting point may also develop heat stress and fine cracks, potentially causing serious imperfections that could weaken the weld.

Which Metals Can Be Welded Together?

Successfully welding two different types of metal requires an in-depth understanding of the materials and how they interact. For instance, aluminum’s low melting point makes welding it to steel or any other material nearly impossible. Copper and bronze are also difficult but joining them with steel can be accomplished by a skilled welder who understands their equipment. In most cases, different steel alloys can be joined with sufficient preparation, care, and expertise.

As the oldest and most established metal fabrication shop in La Crosse, WI, C & C Machine has the expertise and equipment to handle any project. No matter how complex your job may be, their welders will help with every step of the project, from the initial design to the finishing touches. Visit their website for more on their welding services, follow their Twitter for more tips and insight, or call (608) 784-4427 to discuss your project with their sales manager.